Supplemental Cash Flow Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended					6 Months Ended				12 Months Ended		30 Months Ended
	Jun. 30, 2012		Mar. 31, 2012	Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011		Dec. 31, 2011	Dec. 31, 2010	Jun. 30, 2012
Component of Operating Other Cost and Expense [Line Items]
Foreign currency losses, net	$ (379)			$ 1,344		$ 1,151		$ 2,589
Restructuring charges, net	(70)	[1]	14,400	2,983	[1]	14,345	[1]	3,963	[1]	8,584	2,196	25,125
Other, net	1,169			1,760		2,086		1,147
Total other operating expense, net	720			6,087		17,582		7,699
Cash taxes paid						61,505		46,233
Interest paid						$ 6,600		$ 9,544

[1] See Note 3 "Restructuring."